A micro flat structure FDC piercing connector

Abstract

The present invention discloses a miniature flat structure FDC piercing connector, which belongs to the field of connector technology. The connector includes a plurality of male terminals, a female housing, a positioning auxiliary, a male housing and a plurality of female terminals; the male housing is a flat rectangular cavity, and a plurality of parallel female terminal mounting holes are arranged on its front end face, and the female terminals are arranged inside the male housing through the female terminal mounting holes, and the positioning auxiliary is installed on the top of the male housing, which is used to limit the female terminals installed in the male housing; the female housing is a flat rectangular cavity, and a plurality of male terminals are arranged in a plurality of hidden grooves on the rear end face of the female housing, and the male housing is plugged into the inside of the female housing through the front end opening of the female housing, and the male terminals and female terminals in corresponding positions are in contact to form an electrical connection. The connector provided by the present application reduces the traditional vertical height through structural design, improves the overall strength, realizes the flattening of the overall structure, and better adapts to the application requirements of small spaces.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a FDC piercing connector with a miniature flat structure. Background Art

[0002] In actual application scenarios, especially small spaces, there are usually extremely strict size requirements for the components used, and it is necessary to save space as much as possible to achieve a compact layout of the equipment. However, most FDCs (Field Device Connectors) on the market currently fail to achieve the ideal flatness in terms of height and width, which makes the installation and layout of connectors difficult in some space-constrained environments (such as microelectronic devices, inside precision instruments, etc.). The reason is: on the one hand, connectors that are not flat enough will take up too much vertical space, resulting in an increase in the overall thickness of the equipment, affecting the portability and aesthetics of the product; on the other hand, in the case of small space, the protruding part of the connector will interfere with other components, affecting the normal operation and performance of the equipment. Summary of the invention

[0003] In order to solve the problem in the prior art that there is a lack of connectors that can better adapt to small space application requirements, the present invention provides the following technical solutions.

[0004] The present invention provides a miniature flat structure FDC piercing connector, comprising a plurality of male terminals, a female shell, a positioning auxiliary, a male shell and a plurality of female terminals; the male shell is a flat rectangular cavity, and a plurality of parallel female terminal mounting holes are arranged on its front end surface, the female terminals are arranged inside the male shell through the female terminal mounting holes, and the positioning auxiliary is installed on the top of the male shell to limit the female terminals installed in the male shell; the female shell is a flat rectangular cavity, and a plurality of male terminals are arranged in a plurality of hidden grooves on the rear end surface of the female shell, and the male shell is inserted into the inside of the female shell through the front end opening of the female shell, and the male terminals and the female terminals at corresponding positions are in contact to form an electrical connection.

[0005] Preferably, two reinforcing members are further included, and placement grooves are respectively provided on both side end surfaces of the female end shell, and the two reinforcing members are respectively arranged in the placement grooves.

[0006] Preferably, both side end faces of the female end shell are provided with snap grooves, and both side end faces of the male end shell are provided with elastic snap parts, and the snap parts are snapped with the snap grooves to achieve snap connection between the female end shell and the male end shell.

[0007] Preferably, a first positioning groove is provided on the inner surface of the upper end face of the female end housing, and a first positioning rib is provided on the inner surface of the rear end face of the female end housing. A second positioning rib adapted to the first positioning groove is provided on the upper end face of the male end housing, and a second positioning groove adapted to the first positioning rib is provided on the outer surface of the rear end face of the male end housing.

[0008] Preferably, the positioning auxiliary member includes an upper cover portion and fixing portions vertically provided at both ends of the upper cover portion. A plurality of groups of first stop portions and second stop portions perpendicular to each other are provided on the inner surface of the upper cover portion.

[0009] Preferably, one end of the female terminal is provided with a piercing portion for connecting to the FDC board, and the other end is provided with a plugging portion for elastically plugging into the connecting portion of the male terminal. A first limiting portion and a second limiting portion are further provided in the middle section of the female terminal. The first stop portion abuts against the first limiting portion, and the second stop portion abuts against the second limiting portion.

[0010] Preferably, the male terminal includes a connecting portion and a bending portion. The bending portion is in a "U" shape. One of the two parallel sides of the bending portion is connected to the connecting portion, and a plurality of first hook feet for fixing the male terminal on the female end housing are provided on the side connected to the connecting portion. The side of the bending portion not connected to the connecting portion is hung on the outside of the female end housing through a hidden groove for welding to the PCB board, and the connecting portion extends into the female end housing through the hidden groove.

[0011] Preferably, a rectangular frame is provided in the cuboid-shaped cavity of the male end housing. An accommodating space for accommodating the male terminal and the female terminal is provided in the rectangular frame. A plurality of groups of first preset grooves and second preset grooves are provided in the accommodating space. The first preset grooves are used for positioning the first stop portions, and the second preset grooves are used for positioning the second stop portions.

[0012] Preferably, a first deduction portion and a second deduction portion are provided on the outer surfaces of both side walls of the rectangular frame, and the first deduction portion and the second deduction portion are arranged in parallel along the front-rear direction of the rectangular frame.

[0013] Preferably, a first locking portion and a second locking portion are provided on the inner surface of the fixing portion of the positioning auxiliary member in parallel along the front-rear direction. The first deduction portion is adapted to the first locking portion or the second locking portion, and the second deduction portion is adapted to the first locking portion.

[0014] A micro flat structure FDC piercing connector provided by the present invention has the following beneficial effects:

[0015] The FDC piercing connector provided by the present invention is in the shape of a flat rectangular parallelepiped, and the snap groove and the snap portion are respectively arranged on the horizontal sides of the female shell and the male shell, thereby reducing the vertical height of the connector; the bent portion of the male terminal is arranged in the hidden groove of the female shell, so that the female shell and the PCB board can be tightly fitted, and the use space is smaller; in addition, in the case of compressed vertical space, the female shell and the male shell are relatively thin, and it is not easy to limit the female terminal, and the relative strength of the two sides is relatively weak. The present application adopts a positioning auxiliary part to limit the female terminal, and the reinforcement part arranged at the same time also improves the overall strength of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the assembly structure of the miniature flat FDC piercing connector provided by the present invention;

[0017] Figure 2 It is a schematic diagram of the exploded structure of the FDC piercing connector of the micro flat structure of the present invention;

[0018] Figure 3 A top view of the female terminal provided by the present invention;

[0019] Figure 4 A three-dimensional diagram of a positioning auxiliary member provided by the present invention;

[0020] Figure 5 A front view of the male terminal provided by the present invention;

[0021] Figure 6a-6c The female housing structure provided by the present invention is shown, wherein: Figure 6a This is the main view of the female housing. Figure 6b is a first stereogram of the female housing, Figure 6c is a second stereoscopic view of the female end housing;

[0022] Figure 7a-7c The male end housing structure provided by the present invention is shown, wherein: Figure 7a is a three-dimensional diagram of the male end housing. Figure 7b It is a top view of the male housing. Figure 7c for Figure 7b Cross-sectional view along direction BB;

[0023] Figure 8 This is a schematic diagram of the structure of the reinforcement member provided by the present invention.

[0024] Description of reference numerals: 10, male terminal; 11, first hook foot; 12, bending portion; 20, female terminal housing; 21, insertion pin; 22, first positioning groove; 23, first positioning rib; 24, placement groove; 25, snap groove; 26, hidden groove; 30, reinforcement member; 31, second hook foot; 40, positioning auxiliary member; 41, first-order locking portion; 42, second-order locking portion; 43, first stop portion; 44, second stop portion; 50, male terminal housing; 51, snap portion; 52, pressing portion; 53, first preset groove; 54, second preset groove; 55, first-order deduction portion; 56, second-order deduction portion; 60, female terminal; 61, first limiting portion; 62, second limiting portion. Detailed implementation manners

[0025] To better understand the above technical solution, the following will describe the above technical solution in detail in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0026] Please refer to Figure 1-Figure 8 , this embodiment provides a micro flat structure FDC piercing connector, including a plurality of male terminals 10, a female terminal housing 20, a reinforcement member 30, a positioning auxiliary member 40, a male terminal housing 50 and a plurality of female terminals 60; the male terminal housing 50 is a flat cuboid cavity, and a plurality of parallel female terminal mounting holes are provided on the front end face, and a plurality of female terminals 60 are arranged inside the male terminal housing 50 through the female terminal mounting holes, and the positioning auxiliary member 40 is installed on the top of the male terminal housing 50 for limiting the female terminals installed in the male terminal housing 50; the female terminal housing 20 is a flat cuboid cavity, and two reinforcement members 30 are respectively arranged in the placement grooves 24 on both side end faces of the female terminal housing 20 to improve the strength of the connector; a plurality of male terminals 10 are correspondingly arranged in a plurality of hidden grooves 26 on the rear end face of the female terminal housing 20, and the male terminal housing 50 is inserted into the inside of the female terminal housing 20 through the front end opening of the female terminal housing 20, and the male terminals 10 and the female terminals 60 at corresponding positions are in contact to form an electrical connection.

[0027] Specifically, the male terminal 10 includes a connecting portion and a bending portion 12, the bending portion 12 is in a "U" shape, one of the two parallel sides of the bending portion 12 is connected to the connecting portion, and a plurality of first hook feet 11 for stably arranging the male terminal 10 on the female terminal housing 20 are arranged on the side connected to the connecting portion.

[0028] The female end shell 20 is a flat rectangular cavity with an open front end. The male end shell 50 is plugged into the interior of the female end shell 20 through the front end opening of the female end shell 20; the upper end surface of the female end shell 20 is provided with a plug pin 21 for plugging and fixing the PCB board, and the rear end surface of the female end shell 20 is provided with a plurality of hidden grooves 26 for installing the male terminal 10. The edge of the bending portion 12 that is not connected to the connecting portion is hung on the outside of the female end shell 20 through the hidden groove for welding with the PCB board, and the connecting portion extends into the interior of the female end shell 20 through the hidden groove 26. The end faces of both sides of the female housing 20 are provided with snap grooves 25 and placement grooves 24. The snap grooves 25 are used to snap with the snap parts 51 of the male housing 50 to achieve snap connection between the female housing 20 and the male housing 50. The reinforcement 30 is installed on both sides of the female housing 20 through the placement grooves 24 to improve the overall strength of the connector. At the same time, it can be welded and fixed with the external board end as required. It should be noted that the welding and fixing with the external board end here is a non-electrical connection, which mainly provides a way to fix the connector on the external board end. The type of the external board end can be adjusted as needed. The inner surface of the upper end face of the female housing 20 is provided with a first positioning groove 22, and the inner surface of the rear end face is provided with a first positioning rib 23. The first positioning groove 22 and the first positioning rib 23 are respectively adapted to the second positioning rib and the second positioning groove on the male housing 50, and are used for positioning when the male housing 50 is inserted into the female housing 20 to facilitate the insertion of the male housing 50 and the female housing 20.

[0029] The female terminal 60 is in the shape of an elongated strip, with one end of the female terminal 60 being provided with a piercing portion for connecting to the FDC board, and the other end being provided with a plug-in portion for elastically plugging into the connecting portion of the male terminal 10, and the middle section of the female terminal 60 being further provided with a first limiting portion 61 and a second limiting portion 62, wherein the first limiting portion 61 extends outwardly along the length direction of the female terminal 60; the second limiting portion 62 is in the shape of an "L", with one edge of the second limiting portion 62 being provided along the length direction of the female terminal 60, and the other edge being provided along the width direction of the female terminal 60, wherein the first limiting portion 61 is used to abut against the first stop portion 43 of the positioning auxiliary component 40, and the second limiting portion 62 is used to abut against the second stop portion 44 of the positioning auxiliary component 40.

[0030] The upper end surface of the male housing 50 is provided with a second positioning rib for matching with the first positioning groove 22, and the outer surface of the rear end surface of the male housing 50 is provided with a second positioning groove for matching with the first positioning rib 23; both side end surfaces of the male housing 50 are provided with elastic snap-on parts 51 and pressing parts 52, the snap-on parts 51 are snap-on with the snap-on groove 25 to realize the snap-on connection between the female housing 20 and the male housing 50, the elastic end of the pressing part 52 overlaps with the elastic end of the snap-on part 51, when the pressing parts 52 on the side end surfaces of the male housing 50 are pressed, the elastic end of the pressing part 52 squeezes the snap-on part 51 to move toward the side end surface of the male housing 50, so as to withdraw the snap-on part 51 from the snap-on groove 25, so as to facilitate the disassembly of the male housing 50 and the female housing 20. In order to facilitate the user's operation, the pressing part 52 is also provided with a plurality of protrusions for increasing the pressing friction force. A rectangular frame is provided in the flat rectangular cavity of the male end shell 50, and a accommodating space for accommodating the male terminal 10 and the female terminal 60 is provided in the rectangular frame. The accommodating space is provided with multiple groups of first preset grooves 53 and second preset grooves 54. The first preset grooves 53 are used for pre-positioning the first stop portion 43, and the second preset grooves 54 are used for pre-positioning the second stop portion 44. The outer surfaces of the two side walls of the rectangular frame are provided with a first-order buckling portion 55 and a second-order buckling portion 56. The first-order buckling portion 55 and the second-order buckling portion 56 are arranged in parallel along the front-to-back direction of the rectangular frame.

[0031] The positioning auxiliary member 40 includes an upper cover and a fixing portion vertically arranged at both ends of the upper cover, the inner surface of the fixing portion is parallelly arranged with a first-order locking portion 41 and a second-order locking portion 42 in the front-to-back direction, and the inner surface of the upper cover is provided with a plurality of groups of first stoppers 43 and second stoppers 44 vertically arranged with each other, the first stoppers 43 abut against the first limiting portion 61, and the second stoppers 44 abut against the second limiting portion 62. The front end surface of the male end housing 50 is also provided with a glue removal port for removing glue from the first-order buckle portion 55 and the second-order buckle portion 56.

[0032] The first-order locking portion 55 is used to lock the first-order locking portion 41 or the second-order locking portion 42 of the positioning auxiliary component 40. When the first-order locking portion 55 is locked with the first-order locking portion 41, the first stop portion 43 limits the movement of the first limiting portion 61 of the female terminal 60; when the second-order locking portion 56 is locked with the first-order locking portion 41 and the first-order locking portion 55 is locked with the second-order locking portion 42, the first stop portion 43 limits the movement of the first limiting portion 61 of the female terminal 60, and the second stop portion 44 limits the movement of the second limiting portion 62; the second-order locking portion 56 is used to lock the first-order locking portion 41 of the positioning auxiliary component 40.

[0033] The working process of the positioning auxiliary component 40 in limiting the female terminal 60 installed in the male end housing 50 is as follows: first, when the first-order buckle portion 55 is locked with the first-order locking portion 41, the positioning auxiliary component 40 is moved backward relative to the female terminal 60 until the first stop portion 43 can limit the forward movement of the first limiting portion 61 of the female terminal 60, that is, at this time, relative to the positioning auxiliary component 40, the female terminal 60 cannot move forward; then, press the positioning auxiliary component 40 downward, so that the second-order buckle portion 56 is locked with the first-order locking portion 41, and the first-order buckle portion 55 is locked with the second-order locking portion 42. At this time, the first stop portion 43 can limit the first limiting portion 61 of the female terminal 60 from moving forward, and the second stop portion 44 can limit the second limiting portion 62 from moving forward, thereby achieving the limitation of the female terminal 60.

[0034] The reinforcing member 30 is in the shape of a plate, and a second hook foot 31 is provided in the middle of the side of the reinforcing member 30 . The lower end of the reinforcing member 30 is a T-stage structure. The second hook foot 31 and the T-stage structure are arranged to facilitate stably placing the reinforcing member 30 in the placement groove 24 .

[0035] During use, the female shell 20 can be soldered to the PCB board through the bending portion 12 of the male terminal 10, the male shell 50 is set on the FDC board, and the piercing portion of the female terminal 60 can be connected to the FDC board through piercing riveting or other processes that are maturely applied in starting power supplies; when the male shell 50 is buckled with the female shell 20 through the snap portion 51, the electrical connection between the PCB board and the FDC board can be achieved. In a preferred embodiment, the vertical height of the connector provided in the present application is less than 4.5 mm.

[0036] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A miniature flat structure FDC piercing connector, characterized in that: It includes a number of male terminals (10), a female terminal housing (20), a positioning auxiliary member (40), a male terminal housing (50) and a number of female terminals (60); the male terminal housing (50) is a flat cuboid-shaped cavity, and its front end face is provided with a plurality of parallel female terminal mounting holes. The female terminals (60) are arranged inside the male terminal housing (50) through the female terminal mounting holes. The positioning auxiliary member (40) is installed on the top of the male terminal housing (50) for limiting the female terminals (60) installed inside the male terminal housing (50); the female terminal housing (20) is a flat cuboid-shaped cavity, and a number of the male terminals (10) are arranged in a number of hidden grooves (26) on the rear end face of the female terminal housing (20). The male terminal housing (50) is inserted into the inside of the female terminal housing (20) through the front end opening of the female terminal housing (20), and the male terminals (10) and the female terminals (60) at corresponding positions are in contact to form an electrical connection; It further includes two reinforcing members (30). Placement grooves (24) are respectively arranged on both side end faces of the female terminal housing (20), and the two reinforcing members (30) are respectively arranged in the placement grooves (24); Snap grooves (25) are arranged on both side end faces of the female terminal housing (20), and elastic snap portions (51) are arranged on both side end faces of the male terminal housing (50). The snap portions (51) are snapped with the snap grooves (25) to achieve the snap connection between the female terminal housing (20) and the male terminal housing (50); The male terminal (10) includes a connecting portion and a bending portion (12). The bending portion (12) is in a "U" shape. One of the two parallel sides of the bending portion (12) is connected to the connecting portion, and a number of first hook feet (11) for fixing the male terminal (10) on the female terminal housing (20) are arranged on the side connected to the connecting portion. The side of the bending portion (12) not connected to the connecting portion is hung outside the female terminal housing (20) through the hidden groove (26) for welding with the PCB board, and the connecting portion extends into the inside of the female terminal housing (20) through the hidden groove (26).

2. A miniature flat structure FDC piercing connector according to claim 1, characterized in that: A first positioning groove (22) is arranged on the inner surface of the upper end face of the female terminal housing (20), and a first positioning rib (23) is arranged on the inner surface of the rear end face of the female terminal housing (20). A second positioning rib for adapting to the first positioning groove (22) is arranged on the upper end face of the male terminal housing (50), and a second positioning groove for adapting to the first positioning rib (23) is arranged on the outer surface of the rear end face of the male terminal housing (50).

3. A micro flat structure FDC piercing connector according to claim 1, characterized in that: The positioning auxiliary member (40) includes an upper cover portion and fixing portions vertically arranged at both ends of the upper cover portion. A number of groups of first stop portions (43) and second stop portions (44) arranged perpendicular to each other are arranged on the inner surface of the upper cover portion.

4. A micro flat structure FDC piercing connector according to claim 3, characterized in that: One end of the female terminal is provided with a piercing portion for connecting to an FDC board, and the other end is provided with a plug-in portion for elastically plugging into a connecting portion of a male terminal (10); a middle section of the female terminal (60) is also provided with a first limiting portion (61) and a second limiting portion (62); the first stop portion (43) abuts against the first limiting portion (61), and the second stop portion (44) abuts against the second limiting portion (62).

5. The miniature flat structure FDC piercing connector according to claim 3, characterized in that: A rectangular frame is provided in the rectangular parallelepiped cavity of the male end housing (50), and a containing space for containing the male terminal (10) and the female terminal (60) is provided in the rectangular frame. The containing space is provided with a plurality of groups of first preset grooves (53) and second preset grooves (54), wherein the first preset grooves (53) are used to position the first stop portion (43), and the second preset grooves (54) are used to position the second stop portion (44).

6. A micro flat structure FDC piercing connector according to claim 5, characterized in that: The outer surfaces of both side walls of the rectangular frame are provided with a first-order buckling portion (55) and a second-order buckling portion (56), and the first-order buckling portion (55) and the second-order buckling portion (56) are arranged in parallel along the front-rear direction of the rectangular frame.

7. A micro flat structure FDC piercing connector according to claim 6, characterized in that: A first-order locking portion (41) and a second-order locking portion (42) are provided on the inner surface of the fixing portion of the positioning auxiliary component (40) in parallel along the front-to-back direction; the first-order buckling portion (55) is matched with the first-order locking portion (41) or the second-order locking portion (42); and the second-order buckling portion (56) is matched with the first-order locking portion (41).

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